How History Shaped the Rituals of State Funerals

Bob Kemper, in the Atlanta Journal-Constitution (June 8, 2004):

Those who planned Lincoln's funeral in 1865 had to look to European and Masonic
rituals in creating the American state funeral, according to historians. Many
of the rituals of Reagan's funeral, such as the inclusion of a riderless horse
in the funeral procession, are rooted in rituals that date back to the days
of Genghis Kahn and the Roman Empire.

A warrior's horse was once sacrificed at the time of his burial so that it
could meet him in the afterlife and allow him to ride into heaven.

In the same vein, a caisson designed for a 75 mm cannon will carry Reagan's
casket much as they once were used to evacuate the dead from battlefields.

Three volleys will be fired over Reagan's grave to mark the end of the service,
just as three volleys indicated Civil War soldiers had completed services for
their fallen brethren and were ready again to engage the enemy.